KR20130001260A

KR20130001260A - Fuse unit

Info

Publication number: KR20130001260A
Application number: KR1020127026114A
Authority: KR
Inventors: 노리오 마츠무라; 히데노리 키부시
Original assignee: 야자키 소교 가부시키가이샤
Priority date: 2010-04-06
Filing date: 2011-04-06
Publication date: 2013-01-03
Also published as: WO2011126140A1; KR101461300B1; DE112011101265B4; CN102834892A; CN102834892B; JP2011233506A; US8821190B2; JP5681521B2; DE112011101265T5; US20130095696A1

Abstract

The fuse unit includes a first connection part to which power is supplied and a second connection part to be connected to a counterpart terminal. The second connection part includes a bolt connection part to which the opposite terminal is connected by a bolt and a connector connection part to which the opposite terminal is connected by a connector.

Description

Fuse Unit {FUSE UNIT}

The present invention relates to a fuse unit.

A conventional fuse unit is disclosed in PTL 1. The conventional fuse unit 100 is fixed to the battery post 102 of the battery 101 through the battery connection terminal 103 as shown in FIG. The conventional fuse unit 100 is connected to the outer surface of the busbar 110 through a busbar 110, which is a conductive metal plate, and insert molding, as shown in FIGS. 9 and 10. Insulating resin portion 120 is provided.

The battery connection terminal 103 is connected to the bus bar 110. The bus bar 110 may include a power feeding connection 111 to which electric power is supplied from the battery post 102, a starter motor connection part 112 to which a starter motor terminal 130 is connected, and an alternator. (alternator) connector 131 is connected to the alternator generator 113, a plurality of load connection portion 114 is connected to the load-side terminals (not shown), the power supply connection portion 111 and the AC generator connection portion ( A fusible part 115 for an alternator disposed between 113 and a plurality of load fusible parts interposed between each of the power supply connecting portion 111 and the plurality of load connecting portions 114 ( 116.

The outer circumference of the bus bar 110 except for the positions of the connection parts 111 to 114 or the available parts 115 and 116 is covered with the insulating resin part 120. In addition, the connector housing portion 120a surrounding the outer circumference of the plurality of load connecting portions 114 is formed by the insulating resin portion 120.

The other terminal (not shown) is connected to the plurality of load connection parts 114 through a connector connection.

[PTL 1] JP-A-2002-329457

In the conventional fuse unit 100, the other terminal cannot be connected to the load connection portion 114 by the bolt connection.

In order to use the load connection part 114 as a bolt connection, it is necessary to change the shape of the bus bar 110 and the insulating resin part 120, and the mold of the bus bar 110 and the mold of insert molding are newly manufactured. There is a need. Therefore, in order to meet the user's needs for both bolted connection and connector connection, it is necessary to provide a plurality of types of fuse units, and there is a problem that the overall cost increases.

Accordingly, one preferred aspect of the present invention is to provide a fuse unit that can accommodate both bolted and connector connections at low cost.

According to one aspect of the invention, provided in a fuse unit, the fuse unit comprises:

A first connection portion to which power is supplied; And

A second connection portion configured to be connected to a mating terminal;

The second connection portion:

A bolt connection part to which a counterpart terminal is connected by a bolt; And

The mating terminal includes the connector connecting portion by the connector.

The fuse unit includes a bolt connection portion and a connector connection portion provided to the busbar, an insulating resin portion provided around the busbar, a bolt connection portion formed to have a bolt insertion hole, and a stud bolt inserted into the bolt insertion hole has an insulating resin portion. And the connector connecting portion is a tab terminal formed by a part of the busbar, and the connector housing can be configured to be formed around the tab terminal by the insulating resin portion.

The screw of the stud bolt may protrude from the side where the connector housing protrudes with respect to the connector connection, or protrude from the side opposite the side with which the connector housing protrudes with respect to the connector connection.

The fuse unit has a tab terminal in which a bolt connection part and a connector connection part are provided in the bus bar, an insulating resin part is provided around the bus bar, the bolt connection part is formed with a bolt insertion hole, and the connector connection part is formed by a part of the bus bar. And a connector housing is formed around the tab terminal by the insulating resin portion.

According to the invention, the fuse unit can accept both bolted and connector connections. Furthermore, one type of fuse unit is sufficient so that the overall cost can be reduced.

1 is a perspective view of a fuse unit according to a first embodiment of the present invention.
2 is a perspective view of the busbar according to the first embodiment.
3 is a perspective view of a fuse unit to which the other terminal is connected by bolt tightening.
4 is a perspective view of a fuse unit to which the other terminal is connected by a connector;
5 is a perspective view from the front side of the fuse unit according to the second embodiment of the present invention.
6 is a perspective view from the rear side of the fuse unit.
7 is a perspective view of a fuse unit to which the other terminal is connected by bolts.
8 is a perspective view of a fuse unit according to a third embodiment of the present invention.
9 is an exploded perspective view illustrating a state in which a conventional fuse unit is directly mounted on a battery.
10 is a plan view before a conventional fuse unit is folded processing.

In the following, embodiments of the present invention will be described with reference to the drawings.

1 to 4 show a first embodiment of the present invention.

As shown in FIGS. 1 and 2, the fuse unit 1A is fixed to a battery post (not shown) of a battery (not shown) through a battery connection terminal (not shown). The fuse unit 1A includes a bus bar 2 which is a conductive metal plate, and an insulating resin portion 15 provided on the outer surface of the bus bar 2 by insert molding.

The busbar 2 includes a power supply connection part 3 (first connection part), two terminal connection parts 10 and 20 (second connection part), and an available part 4. The power supply connection 3 is connected to a battery connection terminal to receive power from the battery post. The terminal connections 10, 20 are connected to the other terminals of the load side, for example. The soluble part 4 is interposed between the power supply connection part 3 and the terminal connection part 10. The bolt insertion hole 3a is formed in the connection part 3 for electric power feeding.

Each terminal connection portion 10, 20 has a bolt connection portion 11, 21, and a connector connection portion 11, 22 disposed opposite the bolt connection portion 11, 21 in the power supply connection portion 3. The other terminal 30 (shown in FIG. 3) is connected to the bolt connections 11, 21 by bolts. The other terminal 31 (shown in FIG. 4) is connected to the connector connecting portions 12, 22 by a connector.

Bolt insertion holes 11a and 21a are formed in the respective bolt connection portions 11 and 21. The stud bolts 13 and 23 are inserted into the bolt insertion holes 11a and 21a. Head portions (not shown) of the inserted stud bolts 13 and 23 are fixed by the insulating resin portion 15. Each of the screw portions 13a and 23a of the stud bolts 13 and 23 protrudes to the same side as the side on which the connector housing portion 24 protrudes with respect to the connector connecting portions 12 and 22.

Each of the connector connections 12, 22 is a tab terminal formed by a portion of the busbar 2.

The insulating resin portion 15 is arranged to cover the outer circumference of the bus bar 2 except for the power supply connection part 3, the two bolt connection parts 11 and 21, and the soluble part 4. Further, by the insulating resin portion 15, connector housing portions 24 surrounding the outer periphery of each of the connector connecting portions 12 and 22 are formed, respectively. That is, the connector housing part 24 is formed around the tab terminal by the insulating resin part 15.

Next, a process for manufacturing the fuse unit 1A is schematically described. First, the bus bar 2 shown in FIG. 2 is produced by the mold of the bus bar 2. Next, the busbar 2 having the stud bolts 13 and 23 inserted into each of the bolt insertion holes 11a and 21a is set in a mold (not shown) of insert molding, and insert molding of a synthetic resin material is performed. do. By such insert molding, the insulating resin portion 5 is formed on the predetermined outer surface of the bus bar 2. At least the head portion of each stud bolt 13, 23 is embedded in the insulating resin portion 15, and the stud bolts 13, 23 are fixed.

In the fuse unit 1A manufactured in the above-described process, in the case of the other terminal 30 for bolt connection, as shown in FIG. 3, each other terminal 30 is connected to the bolt connection part 11 by bolt tightening. 21). Each other terminal 30 is provided in the transverse direction and is tightened with a bolt. The wire W connected to the other terminal 30 extends in the horizontal direction. In addition, in the case of the other terminal 31 for connector connection, as shown in FIG. 4, each other terminal 31 is connected to the connector connecting portions 12 and 22 by the connector connection. The wire W connected to the other terminal 31 extends downward.

As described above, the bolt connection parts 11 and 21 connected by the bolt and the connector connection parts 12 and 22 connected by the connector are included in all the terminal connection parts 10 and 20. Thus, the fuse unit can accommodate both bolted and connector connections. Furthermore, since one type of fuse unit 1A is sufficient, the overall cost can be reduced.

A bus bar 2 including bolt connection parts 11 and 21 and connector connection parts 12 and 22, and an insulating resin part 15 arranged around an outer circumference of the bus bar 2, and including a bolt connection part 11 And 21 are provided with bolt insertion holes 11a and 21a, and the stud bolts 13 and 23 inserted into the bolt insertion holes 11a and 21a are fixed by the insulating resin part 15, and the connector connection part 12 , 22 is a tab terminal formed by a portion of the busbar 2, and the connector housing portion 24 is formed by the insulating resin portion 15 around the outer circumference of the tab terminal. Thus, the fuse unit 1A, which can accommodate both bolted and connector connections, can be manufactured by the mold of one type of busbar 2 and the mold of one type of insert molding, so that the cost for the mold is increased. Reduced or simplified manufacturing by the mold.

The screw portions 13a and 23a of the stud bolts 13 and 23 protrude to the same side as the side from which the connector housing portion 24 protrudes. Therefore, each other terminal 30 is provided in the direction that each other terminal 30 does not interfere with the connector housing part 24, ie, a transverse direction, and each other terminal 30 is tightened with a bolt. Lose.

5 to 7 show a second embodiment of the present invention.

5 and 6, the fuse unit 1B differs from the first embodiment in that the installation directions of the stud bolts 13 and 23 are set in the reverse direction of the front and rear surfaces. That is, each of the screw portions 13a, 23a of the stud bolts 13, 23 protrudes to the side opposite to the side from which the connector housing portion 24 protrudes. That is, each of the screw portions 13a and 23a protrudes from the side where the connector housing 24 does not protrude.

Since other configurations are similar to those in the first embodiment, the description thereof is omitted. In the drawings, the same reference numerals are assigned to the same components as in the first embodiment, thereby making the configuration clear.

Further, in this second embodiment, the bolt connection parts 11 and 21 connected by the bolts and the connector connection parts 12 and 22 connected by the connector are all terminal connection parts 10 and 20 similarly to the first embodiment. Included in Thus, the fuse unit can accommodate both bolted and connector connections. Furthermore, since one type of fuse unit 1B is sufficient, the overall cost can be reduced.

The screw portions 13a and 23a of the stud bolts 13 and 23 protrude from the side opposite to the side from which the connector housing portion 24 protrudes. Thus, each other terminal 30 is installed in the longitudinal direction as shown in Fig. 7, and is tightened with bolts. The wire W connected to the other terminal 30 extends downward. As a result, the electric wire W is connected to the electric wire W in a manner similar to the other terminal (not shown) connected by the connector even when the other terminal of the special type including the L shape is not used as the other terminal 30. ) May extend downwards.

Thus, in the second embodiment, the electric wire W can extend in the same direction for both the bolt connection and the connector connection, so that the cable space of the electric wire W can be reduced.

In the second embodiment, the bolt connecting portions 11 and 21 are formed such that each other terminal 30 can be provided only in the longitudinal direction by the partition wall 15a of the insulating resin portion 15, but the partition wall 15a May be appropriately changed, and the other terminal 30 may be installed in a required direction. In addition, when it is necessary to install the partition wall 15a, the installation direction of each of the other terminals 30 can be freely set, and the direction in which the electric wire W extends can be freely selected.

8 shows a third embodiment of the present invention. The fuse unit 1C of the third embodiment differs from the first embodiment in that the stud bolts 13 and 23 are not attached to the bolt connections 11 and 21 as shown in FIG. That is, in insert molding, insert molding is performed without attaching the stud bolts 13 and 23 to the bolt insertion holes 11a and 21a of the bolt connecting portions 11 and 21.

The user making the connection by the connector does not need the bolt connections 11, 21. Thus, by using the fuse unit 1C according to the third embodiment, the component cost and the assembling work of the stud bolts (not shown) can be reduced.

In addition, when the bolt connection parts 11 and 21 are used, the projecting direction of the screw part of the stud bolt (not shown) can be freely selected by being set to the front side or the rear side. Therefore, when the other terminal to be connected to the bolt is installed in the lateral direction and the electric wire extends in the lateral direction, the screw part of the stud bolt protrudes to the front side. For example, when the other terminal to be bolted is installed in the longitudinal direction rather than in the transverse direction, and the electric wire is extended, the screw portion of the stud bolt protrudes to the rear side.

While the present invention has been shown and described with respect to certain preferred embodiments described above, it will be apparent to those skilled in the art that various modifications and variations can be made based on the teachings of the present invention. It is apparent that such variations and modifications fall within the spirit, scope and purpose of the invention as defined by the appended claims.

This application is based on Japanese Patent Application No. 2010-087700, filed April 6, 2010, and Japanese Patent Application No. 2011-036989, filed February 23, 2011, the contents of which are incorporated herein by reference. It is introduced by reference.

The present invention is very useful for providing a fuse unit that can accommodate both bolted and connector connections, so that one type of fuse unit is sufficient and the overall cost can be reduced.

1A to 1C: fuse unit
2: busbar
3: power connection
10, 20: terminal connection
11, 21: bolt connection
11a, 21a: bolt insertion hole
12, 22: connector connection
13, 23: stud bolt
13a, 23a: screw part
15: insulating resin part
24: connector housing portion
30: Other terminal for bolt connection
31: Other terminal for connector

Claims

A first connection portion to which power is supplied; And
A second connection portion configured to be connected to a mating terminal,
The second connection portion:
A bolt connection part to which a counterpart terminal is connected by a bolt; And
A fuse unit comprising a connector connecting portion to which the opposite terminal is connected by a connector.
The method of claim 1,
The bolt connection and the connector connection are provided in a busbar,
An insulating resin portion is provided around the busbar,
The bolt connection portion is formed to have a bolt insertion hole,
The stud bolt inserted into the bolt insertion hole is fixed by an insulating resin portion,
The connector connection portion is a tab terminal formed by a part of the bus bar,
And a connector housing is formed around the tab only by the insulating resin portion.
The method of claim 2,
The screw of the stud bolt is a fuse unit, characterized in that the connector housing protrudes from the side protruding to the connector connection.
The method of claim 2,
The screw of the stud bolt is a fuse unit, characterized in that the connector housing protrudes from the side opposite the side protruding to the connector connection.
The method of claim 1,
The bolt connection and the connector connection are provided in a busbar,
An insulating resin portion is provided around the busbar,
The bolt connection portion is formed to have a bolt insertion hole,
The connector connection portion is a tab terminal formed by a part of the bus bar,
And the connector housing is formed around the tab terminal by the insulating resin part.